The ADSL wireless
IAD is a ADSL Gateway for next generation IPv4/IPv6 services
transition platform. This Device has already integrated
802.11G Wireless function and VOIP(SIP) function and HighSpeed
ADSL and IP sharing function in one box.

The ES-3026 is
a managed layer-2 switch for workgroups or WAN edge applications.
It is equipped with twenty-four 10/100Mbps ports and two
expansion slots that accommodate optional 10/100/1000Base-T,
1000Base-SX or GBIC modules....